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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yarborough, R. Heston, D. Saunier, P. Hua Quen Tserng Salzman, K. Smith, B. |
| Copyright Year | 1994 |
| Description | Author affiliation: Corp. Res. & Dev., Texas Instrum. Inc., Dallas, TX, USA (Yarborough, R.; Heston, D.; Saunier, P.; Hua Quen Tserng; Salzman, K.; Smith, B.) |
| Abstract | The 4-watt, 28-percent-efficient, 20-GHz power amplifier results reported at last year's symposium have been significantly improved to 4 watts and 38-percent efficiency by using 0.25-/spl mu/m pHEMT device technology. The 1992 paper reported amplifier results for our 0.25-/spl mu/m HFET technology. In 1993, the amplifier was minimally redesigned to accommodate our latest pHEMT device improvements. The results, reported here are for a packaged Kt-band amplifier, include connector losses (no de-embedding), and are the best power and efficiency numbers reported to date for this frequency. The gain and bandwidth of this two-stage amplifier have also increased with the improved device technology, by 4.5- to 13.5-dB power gain across the 17.5- to 21-GHz band. The Kt-band amplifier features a mostly monolithic approach, with a portion of the input- and output-matching networks on alumina. AM/PM measurements for this amplifier demonstrate capability for transmitting QPSK information. This paper presents discrete 0.25-/spl mu/m pHEMT device results at 18 and 20 GHz, as well as amplifier design and performance over a >3-GHz band. |
| Starting Page | 797 |
| Ending Page | 800 |
| File Size | 277248 |
| Page Count | 4 |
| File Format | |
| ISBN | 0780317785 |
| ISSN | 0149645X |
| DOI | 10.1109/MWSYM.1994.335236 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 1994-05-23 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | MMICs Power amplifiers PHEMTs HEMTs MODFETs Paper technology Packaging Connectors Frequency Bandwidth |
| Content Type | Text |
| Resource Type | Article |
| Subject | Condensed Matter Physics Electrical and Electronic Engineering Radiation |
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